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Unit Capability Factor

Includes all reactors that were in commercial operation within 2018 and 2020
Country 2018 2019 2020 2018 - 2020
Number of Reactors UCF
[%]
Number of Reactors UCF
[%]
Number of Reactors UCF
[%]
Number of Reactors UCF
[%]
ARGENTINA 3 45.1 3 55.4 3 69.5 3 56.7
ARMENIA 1 56.9 1 57.8 1 73.3 1 63.0
BELGIUM 7 52.5 7 80.3 7 63.3 7 65.4
BRAZIL 2 90.4 2 92.8 2 80.9 2 88.0
BULGARIA 2 89.2 2 89.6 2 89.4 2 89.4
CANADA 19 79.7 19 80.1 19 77.0 19 78.9
CHINA 43 91.0 46 90.0 47 92.3 47 91.1
CZECH REPUBLIC 6 82.6 6 83.5 6 82.6 6 82.9
FINLAND 4 91.0 4 94.4 4 92.0 4 92.4
FRANCE 58 76.4 58 74.0 58 72.0 58 74.1
GERMANY 7 89.7 7 89.0 6 88.8 7 89.2
HUNGARY 4 89.6 4 91.8 4 90.4 4 90.6
INDIA 22 65.4 22 75.4 22 76.0 22 72.3
IRAN, ISLAMIC REPUBLIC OF 1 77.6 1 73.4 1 71.7 1 74.2
JAPAN 42 16.3 38 20.6 33 15.0 42 17.3
KOREA, REPUBLIC OF 24 64.8 25 68.4 24 76.9 25 70.1
MEXICO 2 97.5 2 81.7 2 83.5 2 87.6
NETHERLANDS 1 79.7 1 88.0 1 91.8 1 86.5
PAKISTAN 5 83.3 5 80.6 5 84.8 5 82.9
ROMANIA 2 93.6 2 93.4 2 92.7 2 93.2
RUSSIA 37 78.4 36 78.8 38 81.9 40 79.7
SLOVAKIA 4 90.3 4 92.1 4 91.5 4 91.3
SLOVENIA 1 90.9 1 91.7 1 99.5 1 94.1
SOUTH AFRICA 2 66.6 2 83.6 2 86.7 2 79.0
SPAIN 7 86.3 7 90.9 7 91.7 7 89.6
SWEDEN 8 89.0 8 88.5 7 75.0 8 84.5
SWITZERLAND 5 85.1 5 88.5 4 89.9 5 87.7
UKRAINE 15 70.2 15 69.7 15 71.0 15 70.3
UNITED KINGDOM 15 76.1 15 65.8 15 61.7 15 67.9
UNITED STATES OF AMERICA 99 92.7 98 93.3 96 92.5 99 92.8
Total 454 76.2 451 77.8 442 77.6 462 77.2

The following information is included in the totals:

TAIWAN, CHINA 6 72.1 5 85.3 4 89.9 6 81.6


Above data generated by the PRIS database. Last update on 2021-12-04

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